Patents by Inventor Eric A. Pulsipher

Eric A. Pulsipher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8045560
    Abstract: Exemplary embodiments are directed to a system and method for managing a network having multiple domains. An exemplary method includes identifying a router interface connected with a switch; assigning a Layer 2 identifier to the interface, wherein the identifier uniquely identifies a Layer 2 domain within the network; and assigning the Layer 2 identifier to the switch.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: October 25, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Max C. Knees, Eric Pulsipher, Srikanth Natarajan, Zhi-Qiang Wang, Loren F. Wilson
  • Patent number: 8005932
    Abstract: A method for discovering a network comprising network devices, the method including dividing the network into zones of network devices, in a zone of the network, identifying devices in the zone that have SNMP (Simple Network Management Protocol) access, collecting data from those devices in the zone identified as having SNMP access, and stitching the collected data into a topology of the network. A machine readable medium a computer program for causing a computing device to perform the exemplary method. A system for discovering a network organized into zones of network devices includes means for identifying devices in a zone of the network that have SNMP access, collecting data from those devices in the zone identified as having SNMP access, and stitching the collected data into a topology of the network, and means for transferring data to and from the means for identifying, collecting and stitching.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: August 23, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Max C. Knees, Eric Pulsipher, Gabriel Wechter, Kevin N. Smith
  • Patent number: 7706382
    Abstract: Exemplary embodiments are directed to a system and method for managing a network having multiple domains. An exemplary method includes identifying a router interface connected with a switch; assigning a Layer 2 identifier to the interface, wherein the identifier uniquely identifies a Layer 2 domain within the network; and assigning the Layer 2 identifier to the switch.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: April 27, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Max C. Knees, Eric Pulsipher, Srikanth Natarajan, Zhi-Qiang Wang, Loren F. Wilson
  • Publication number: 20090316702
    Abstract: Exemplary embodiments are directed to a system and method for managing a network having multiple domains. An exemplary method includes identifying a router interface connected with a switch; assigning a Layer 2 identifier to the interface, wherein the identifier uniquely identifies a Layer 2 domain within the network; and assigning the Layer 2 identifier to the switch.
    Type: Application
    Filed: August 28, 2009
    Publication date: December 24, 2009
    Inventors: Max C. Knees, Eric Pulsipher, Srikanth Natarajan, Zhi-Qiang Wang, Loren F. Wilson
  • Patent number: 7454488
    Abstract: An exemplary method for managing a network of nodes includes receiving information identifying the nodes of the network, and grouping the nodes into zones as a function of relationships among the nodes, such that each zone satisfies a threshold that is based on an operational capacity of a discovery agent assigned to discover the network. An exemplary system for managing a network of nodes includes means or a mechanism for receiving information identifying the nodes of the network, and grouping the nodes into zones as a function of relationships among the nodes, such that each zone satisfies a threshold that is based on an operational capacity of a discovery agent assigned to discover the network, and means or a mechanism for connecting to the network.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: November 18, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Gabriel Wechter, Eric Pulsipher, Max C. Knees
  • Publication number: 20080183715
    Abstract: A network system comprises a discovery subsystem that identifies, enables for consumption, and consumes information. The discovery subsystem isolates business contents and device-specific logic using modular domain-specific contents and data definitions for normalizing the domain-specific contents and describing attributes and value types that uniquely define domain content independently of a device.
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Inventors: Wei Wen Chen, Craig W. Bryant, Eric Pulsipher, Srikanth Natarajan, Chiachu Sun Dorland, Zhi-Qiang Wang, Manas Kumar Behera, Kumar Ramiah Karungulam, Frank Trujillo, Peter C. Notess, Daniel Okine
  • Patent number: 7307962
    Abstract: A device discovery module of a network management software is utilized to discover the presence of layer-2 network devices. When enabled by a command from the network management software, the device discovery module may be configured to query or poll all network devices for information. The device discovery module may be configured to seek address information from an address resolution protocol (“ARP”) cache of a queried network device. The ARP cache may contain addresses, e.g., layer-2 address, of other network devices contacted by the queried network device. The device discovery module may be further configured to retrieve from the queried network device the port type and port configuration. After retrieving the address information, the device discovery module organizes the address information in an ordered list starting with the identified port of a network device and address information detected on the identified port.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: December 11, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Eric A Pulsipher
  • Patent number: 7075896
    Abstract: A method for the automatic layout of switched networks of switched network topologies. In representative embodiments, a topological map of a network is automatically obtained by combining various segments into one of three segment types, a bus segment, a serial segment, and a star segment. In the creation of the topological map of the network, the methods can be used to update the network map as changes occur.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: July 11, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eric A. Pulsipher, Gautam Mehrotra, Mark A Schilling
  • Patent number: 7039696
    Abstract: A software method is disclosed for processing data pertaining to connections in a communications network, such as a computer network. The data may be used to map the topology of the network to aid network management. The system creates data structures referred to as tuples to store the relationships between network nodes. A connection calculator receives tuple information from a tuple manager and creates additional tuples based on this data. The connection calculator identifies singly-heard host links, from which it then builds tuples to represent the network infrastructure. To build the infrastructure, the method creates tuples for the singly-heard host links, and then creates tuples for conn-to-conn links based on existing tuples and on hints derived from singly-heard host links tuples, which hints are maintained as extra host links tuples. The method then attempts to disprove invalid conn-to-conn links tuples and attempts to resolve conflicts between inconsistent tuples.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: May 2, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eric A. Pulsipher, Joseph R. Hunt
  • Patent number: 7027411
    Abstract: A method and system are disclosed for mapping the topology of a network having interconnected nodes by identifying changes in the network and updating a stored network topology based on the changes. The nodal connections are represented by data tuples that store information such as a host identifier, a connector interface, and a port specification for each connection. A topology database stores an existing topology of a network. A topology converter accesses the topology database and converts the existing topology into a list of current tuples. A connection calculator calculates tuples to represent connections in the new topology. The topology converter receives the new tuples, identifies changes to the topology, and updates the topology database using the new tuples. The topology converter identifies duplicate tuples that appear in both the new tuples and the existing tuples and marks the duplicate tuples to reflect that no change has occurred to these connections.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: April 11, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eric A Pulsipher, Joseph R Hunt
  • Patent number: 6961768
    Abstract: Automatic failover methodology provides a mechanism whereby a central control unit, such as a management station, will automatically takeover interface status polling of objects of a collection station that is temporarily unreachable. This methodology is applicable to any distributed computing environment, such as a data communications network, in which it is desirable to have a central control unit assume the interface status polling operation of a temporarily inaccessible collection station. The collection station may be inaccessible due to the network on which the central control unit and the collection station reside being down or due to the collection station being down for maintenance.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: November 1, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Wallace Clayton Davis, Darren D. Smith, Eric A. Pulsipher
  • Publication number: 20050169239
    Abstract: Exemplary embodiments are directed to a system and method for managing a network having multiple domains. An exemplary method includes identifying a router interface connected with a switch; assigning a Layer 2 identifier to the interface, wherein the identifier uniquely identifies a Layer 2 domain within the network; and assigning the Layer 2 identifier to the switch.
    Type: Application
    Filed: September 21, 2004
    Publication date: August 4, 2005
    Inventors: Max Knees, Eric Pulsipher, Srikanth Natarajan, Zhi-Qiang Wang, Loren Wilson
  • Publication number: 20050125518
    Abstract: A method for discovering a network comprising network devices, the method including dividing the network into zones of network devices, in a zone of the network, identifying devices in the zone that have SNMP (Simple Network Management Protocol) access, collecting data from those devices in the zone identified as having SNMP access, and stitching the collected data into a topology of the network. A machine readable medium a computer program for causing a computing device to perform the exemplary method. A system for discovering a network organized into zones of network devices includes means for identifying devices in a zone of the network that have SNMP access, collecting data from those devices in the zone identified as having SNMP access, and stitching the collected data into a topology of the network, and means for transferring data to and from the means for identifying, collecting and stitching.
    Type: Application
    Filed: November 20, 2003
    Publication date: June 9, 2005
    Inventors: Max Knees, Eric Pulsipher, Gabriel Wechter, Kevin Smith
  • Publication number: 20050108385
    Abstract: An exemplary method for managing a discovery-related process in a network, includes identifying topology information of the network using the discovery-related process in an active mode, placing the discovery-related process from the active mode into a standby mode using a management process, monitoring to detect specified events in the network using the management process and then forward the detected specified events to the discovery-related process, and/or monitoring to detect arrival of a predetermined point in time, and placing the discovery-related process from the standby mode into the active mode when the detected specified events exceed a threshold and/or when the predetermined point in time arrives.
    Type: Application
    Filed: October 28, 2003
    Publication date: May 19, 2005
    Inventors: Gabriel Wechter, Eric Pulsipher, Max Knees
  • Publication number: 20050075075
    Abstract: A method of determining a network management scalability threshold of a network manager with respect to a network, includes gathering information about the network, gathering information about the network manager, and determining a maximum size threshold of a zone in the network based on the gathered network information and the gathered network manager software program information. A system for determining a network management scalability threshold of a network manager with respect to a network includes a mechanism for gathering information about the network, a mechanism for gathering information about the network manager, and a mechanism for determining a maximum size threshold of a zone in the network based on the gathered network information and the gathered network manager software program information.
    Type: Application
    Filed: September 23, 2003
    Publication date: April 7, 2005
    Inventors: Gabriel Wechter, Eric Pulsipher, Max Knees
  • Publication number: 20050066020
    Abstract: An exemplary method for managing a network of nodes includes receiving information identifying the nodes of the network, and grouping the nodes into zones as a function of relationships among the nodes, such that each zone satisfies a threshold that is based on an operational capacity of a discovery agent assigned to discover the network. An exemplary system for managing a network of nodes includes means or a mechanism for receiving information identifying the nodes of the network, and grouping the nodes into zones as a function of relationships among the nodes, such that each zone satisfies a threshold that is based on an operational capacity of a discovery agent assigned to discover the network, and means or a mechanism for connecting to the network.
    Type: Application
    Filed: September 23, 2003
    Publication date: March 24, 2005
    Inventors: Gabriel Wechter, Eric Pulsipher, Max Knees
  • Publication number: 20040215781
    Abstract: Techniques are described for determining device connectivity in a network using protocol-specific connectivity information. According to an exemplary embodiment, an address forwarding database (FDB) is collected from the network. Protocol-specific connectivity information and interface information are collected from a device in the network. The protocol-specific connectivity information and interface information are translated into an interface connectivity database. Device connectivity in the network is determined based on the interface connectivity database in cooperation with the FDB.
    Type: Application
    Filed: March 27, 2003
    Publication date: October 28, 2004
    Inventors: Eric A. Pulsipher, Srikanth Natarajan, Max Carl Knees
  • Publication number: 20040172386
    Abstract: An exemplary method for managing a network includes selecting an agent based on information identifying a device in the network, contacting the device via the selected agent to extract data from the device, determining whether the agent successfully extracted the data from the device, and selecting a different agent based on the determining.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 2, 2004
    Inventors: Eric A. Pulsipher, Srikanth Natarajan, Gabriel Wechter, Weiwen Chen
  • Publication number: 20040172467
    Abstract: An exemplary method for monitoring a network includes detecting changes in the network, and initiating discovery of the topology of the network when a number of the detected changes in the network exceeds a threshold. Another exemplary method includes initiating discovery of the topology of the network when a predetermined time period expires.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 2, 2004
    Inventors: Gabriel Wechter, Eric A. Pulsipher, Tyler G. Peterson, Srikanth Natarajan
  • Publication number: 20020124070
    Abstract: A system for providing related information of a network error event to a user in a hand-held device format. In one aspect, the present invention may include a desktop computer system executing a network management software (“NMS”), a hand-held formatter module and a hand-held device interface. The NMS provides a network manager (or administrator/user) the capability to manager, monitor, and/or diagnose a network. In response to a network error event, e.g., a faulty network card, disabled repeater, and the like, the NMS may be configured to generate a repair message, e.g., a trouble ticket, to notify the user of the network error event. The NMS may be further configured to gather related information such network wiring diagrams related to the location of the network error event and/or user, other events that have occurred in a temporally close time, repair checklists, and the like, in response to the repair message.
    Type: Application
    Filed: March 2, 2001
    Publication date: September 5, 2002
    Inventor: Eric A. Pulsipher